On tonight's all-new episode of The Flash, the truth about Jay Garrick's real identity will send shockwaves through the series -- and only ETonline has your exclusive sneak peek of Zoom's jaw-dropping backstory.

We're displeased to introduce Hunter Zoloman -- aka Jay Garrick, Zoom, and the best TV villain we've seen in years!

With his wild hair and soul-piercing eyes, Wells reveals that the mad men is "instantly recognizable" to the people of Earth 2. "On my Earth, serial killers are an anomaly so there's a lot of media attention," he explains.

(With that kind public frenzy, it seems a little bizarre that no one would recognize the facial similarities between Jay and Hunter, but we'll go ahead and let that one slide for now.)

The CW

Here's what you need to know about Hunter's dark and bone-chilling past: "When Hunter was 11, his father killed his mother -- right in front of him. His father was sent to prison and Hunter grew up in the foster care system," Wells shares with the stunned S.T.A.R. Labs team.

Growing up, Hunter was convicted of 23 counts of murder -- which, according to Cisco, is "some real Hannibal Lecter-type level" -- and was sent to the St. Berez Mental Asylum for the Criminally Insane.

Hunter was undergoing electroshock therapy when the Earth 2 particle accelerator exploded, thus creating the "unstoppable monster" known as Zoom.